Hydraulic engine



Jan. 6, 1931.

.5'5-- j ll 6 Sheets-Sheet 1 dlarefice lpzks INVENTOR ATTORN EY Jan. 6, 1 931. c. J. SPIES 1387 137 HYDRAULIC ENGINE Filed may .28, 1928 6 Sheets-Shut 2- INVENTOR wrmsss- W M ATTORNEY Jan. 6, 1931.

c. J. sPns HYDRAULIC- ENGINE Fi led'May 28. 1928 6 Sheets-Sheet 3 ATTO R N EY c. J. SPIES HYDRAULIC ENGINE Fi led may 2a, 1928 Jan. 6, 1931.

6 Sheets-Sheet -5 .llll.

INVENTOR ATTORNEY WITNESS:

Jan. 6, 1931..

c. J. SPIES HYDRAULIC ENGINE Filed May 2a, 1928 '6 Sheets-Sheet 6 wn'uzsswm INVENTOR ATTORNEY Patented Jan. 6, 1931 CLARENCE J. sexes, of coLLinsvitLn, ILLINOIS HYDRAULIo ENGINE i Application filed May 28,

A further object 1S toiprovide means for;

controlling the rate of flow of the liquid from the pump, and othermeansfor determining the flow from achamber connected directly with the pump to, the individual pressure chambers for the cylinders. 7

lVith the foregoing andother objects in view, the invention consists in the novel construction, and arrangement of elements described, illustrated and claimed, it being understood that modifications may be made within the scope of the claims without departing from the spirit of the invention.

In the drawings forming part of this ap plication, V

Figure 1 is a View of the mechanism looking from the right in Figure 2.

Figure 2 is a view in side elevation.

Figure 3 is a vertical'longitudinal section on line 3-3 of Figure 1.

Figure t is a vertical transversesection on line 4r-4: of Figure 2;

I Figure 5 is a vertical section thru the pump, and is taken on line 5-5 of Figure 3.

Figure 6 is a section on linen-6 of Figure 4, and shows the ports with which a rotary valve cooperates in controlling the flow of fluid to the cylinders.

Figure 7 is a section on line 7-7 of Figure 4, and shows the rotary valve, at the left of Figure l, in top plan;

Figure 8 is a section on line 8-8 of Figure 4, and shows the ports below those of-Figure (3, when the elements are assembled as in Figure 4.

Figure 9 is an elevation and vertical section, showing a single upper chamber, in lieu of a plurality of chambers of the first form.

The pump at the left of Figure 3, shown in further detail in Figure 5, is adapted to 1928. Serial No. 281,311.

be driven by any prime mover coupled to shaft 10. .Keyed on this shaft is a cam '11, approximatelyoftriangular form and serving to opera to the pluralityof pistons which maybe of the kind illustrated, these pistons being here disclosedfas of tubular form and designated 14', being proportioned for co operation with the walls, of cylinders 15. These-cylinders are disposed radially with reference to the shaft 10, and the pistons are influenced in onedirectiQn by compression springs 16 which'project into the bores of the pistons, the springsbeing under the control so far as adjustment is concerned.

The cylinders are formed in the cent sl stationary port-ion 18 of the pump, this unit being surrounded by a pump casing 20 of the required size to provide an annular chamber 21. The pistons are acted upon by the high portions 22, 23 and 24 of the cam 11. 7 The oil or other fluid passes from. the crank case 27 thru connectiOnQS and strainer or perforated.elements 29, and enters the cylinders 15 thru ports 15. The fluid passes from the several cylinders thru ports cont-roiled by valves 30 which; are closed by springs 31 adjusted by threaded devices The fluid from thecylinders after passing valves 30 received in annular chamber and passes outwardly thru connection 83-, and thence. thru pipe 34, valve 35, pipe 36, and enters chamber 37 constituting a distributing reservoir op receptacle. I v

The How from the receptacle 3 is controlled by valve 38 having a port 39 therein adapted 1 to. communicate successively with pressure chambers 40, 41, thru pipes such that shownat 11'; n

Valve38is carried rigidly by a stem 44 rotated by the gearing shown at 455', which in turn-is operated by a shaft a6. Any excess pressure in chambers 40, 41 or 42 relieved by anuppervalve, such as valve 47 normally seated by springii-EZ. These valves control port-s communicatingwith upper chamber 49,

and thelatteris in communication by means ofpipeatl Wltll the crank casing, for the re- Jturn tosaid crank casing; of theeizcess fluid.

Oilfromi chambers .40, 4:1 and 42'passes thru pipes 51, 52- and .to valve casing 55 hous- 'Ki l 85 oil passes through ports 89 and ducts 89a of valve 56. The ports 51, 52, 53 are in' reality'in a disk-like element 61, retained as shown m Figure 4 by an element 66.

By wa of illustration, three cylinders 10,

I Ti and 72 arcjsho'wn in this case, and pistons 73, T4 and 75 operate in these cylinders and connecting rods such as rods 76 provide for in'iparting motion to crank shaft 77.

The valve 56 controls the flow of oil under pressure thru pipes '78, 79 and 80 to the upper portions of cylinders 70, 'Tlan'd 72, and when the pistons reach the lower portion of their strokes, ports 82 are opened, and permit return flow to the crank casing 27,- toward the end of the power stroke. The crank shaft 77 carries a fly wheel 84, and the device for actuating the various valves are operatively connected with said shaft 77.

A sleeve valve 85 is positioned between the cylinders 70, 71, 72, and the pressure chainbe-rs 40, 41, 42, and is mounted rigidly with reference to a stem 86 carrying sprocket wheel 87 driven by chain 88. This sleeve valve has ports 89 adapted to register with ports 89 in communication with the respective cylinders. Chain 88 is driven from. sprocket wheel 90 on crank shaft 77, and other sprocket wheels 91, 92 drive respectively the chains 91' and 92- by which motion is imparted to sprocket wheels 91, 92 on shafts 46 and 60. These shafts last referred to control the operation of valves 38 and 56, thru the gearing previously described.

Oil under pressure from the pump enters the cylinders through the ports of valve 56 of Figure 4 and passes from the cylinders.

through sleeve valve 85 of Figures 3 and 4 and through ports 82. From the sleeve valve to the crank case. The rate of flow may be controlled by valve 35 of Figure l, and the speed of the crank'sha ft'and the element to be driven thereby, will also be controlled.

In the modified form of the device shown in Figure 9' the pump P discharges directly to a single upper pressure through valve P chamber C, and the flow from the latter is cont-rolled'by a valve 56. The pipe connections with the valve housing or casing may correspond with those of the What I claim is: 1..In fluid transmission mechanism, a

chamber for containing fluid underpressu'r'e,

52", 53", as shown in Figure primary form.

a valve controlling the admission of fluid to the chamber, a plurailty of cylinders and pistons in the cylinders, individual pressure chambers adapted for communicationwith the pressure chamber first named, a second valve controlling the admission of fluid to the individual pressure chambers successively, a third valve controlling the admission of fluid from the individual chambers to the cylinders, means for operating the second and third valves in predetermined relation, a crank shaft with which said means are con nected, and devices connecting the pistons with the crank shaft.

2. In fluid pressure transmission mechanism, a chamber for containing fluid under pressure, a valve controlling the admission of fluid to the chamber, a plurality of cylinders and pistons in the cylinders, individual pressure chambers adapted for communication with the pressure chamber first named, a second valve controlling the admission of fluid to the individual-pressure chambers, successively, a hollow valve controlling the passage of fluid from the cylinders, a fourth valve controlling the admission of fluid from the individual chambers to the cylinders; means for operating the second, third and fourth valves in predetermined relation, a crank shaft with which said means are operatively connected, and devices connecting the pistons with the crankshaft.

In testimony whereof I affix my signature.

CLARENCE J. SPIES. 

